The CYRUS SHANK 803-200 is a pressure relief valve from the 803 series, featuring a 200 PSI capacity. It has a 1/2 inch FNPT inlet and 3/4 inch FNPT outlet, with a flow rate of 464.2 SCFM for air, 35.4 LB/MIN for air, and 2125.3 LB/HR for air. Constructed from ductile iron with a grey primer coat.